Hose-clamp.



H. R. FRANCIS.

HOSE GLMP,

APPLIUATxoN Elmas QGT.1Q\1910.

996,478, Patented June 27, 1911.

11T TURN-E 7,3

UNiTED sTATns rATnnT on HAROLD n. FRANCIS,

OF ROCKFOBD, ILLINOS, ASSIGNOE OF ONE-HALF TO C. A. ROBERTSON, OFROGKFORD, ILLINOIS.

HOSE-CLAMP.

Specication of Letters latent. Patented Jun@ 2f, 1911 Application ledOctober 19, 1910. Seria'lNo. 587,887.

I To all whom it may concern:

Be it known that I, HAROLD R. FRANCIS, a citizen of the United States,and a resident of Rockford, in the county of Winnebago "land State ofIllinois, have invented a new and Improved Hose-Clamp, of which thefollowing is a full, clear, and exact description..

durable.

One embodiment of the present invention is disclosed in thestructureillustrated in the accompanying drawings, in which likecharacters of reference denote corresponding parts in all the views, andin which- Figure 1 is a side'view of a clamp constructed and arranged inaccordance with the present invention, shown in conjunction with a pipehose section, and in locked relation thereto; 2 is a similar view taken.

from the' opposite side of the clamp; Fig. 3 is a perspective view ofthe clamp, the same being shown in the open position; Fig. 4 is a crosssection of a hose pipe. having applied thereto, and in closed position,a clamp of the ,construction hereindescribed, the section/being taken onthe line 4 4 in Fig. 1;r and Fig. 5 is a detail view of the looped endsof the clamp, showing in conjunction therewith a device for compensatingfor the Wear of the parts of the clamp 4or the hose 1 e. p ilhe clampshown in the accompanying drawings is preferably constructed from wireof any suitable gage. The clamp con-` sists of three distinct butoperatively connected members or parts. The main loop section is formedfrom a single piece of wire, bent to form two half circle sections 10,10,

curved .to substantially thel circumference of the hose pipe. Thesections 10,l 10 are Connected by cross 'bars 11, 11- formed from theend sectlons of each of the halfl circle sections 10, 10.. The bars 11,11 are disposed in parallel relation and have each formed in the endthereof Aan eyelet or loop 12, 12. Each of the eyelets 12, 12 encirclein holding relation the opposite bar 11. t

At the opposite ends of the circle sections 10, 10 there are formedhooks 13, 13. The hooks 13, 13 are connected by a cross bar 14, whichcross bar extends between the open ends of the hooks 13, 13.

The sections herein termed hooks 13, and the cross bar 14, constitute asingle hook member under which is passed the latch bar 15 ofthevopposite loop section which forms the clam-p to encompass the hose pipe.The

loop section having the latch bar '15 is provided with half circlesections 16, 16, at the ends whereof are formed closed eyelets 17 17.The eyelets 17 17 formhinge joints .with short bars 18, 18 formed on thelever member which connects the said loops.

The lever member having the shortbars 18, 13 is provided with a squareframe section having lever arms 19, 19 which are joined across theout-er ends by a cross barv 20. The frame formedby the' arms 19 and thecross bar 20 constitute the handle for operating the lever. This leveris of the second order, and is fulcrumed on the cross bars 11, 11 ofthehalf circle sections 10, 10, as best shown in Fig. 3 of the drawings.The lever is connected to the said cross bars 11 by means of looseeyelets 21, 21.

The parts in their relaxed position are disposed substantially vas shownin Fig. 3 of the drawings. To form a hose connection with clampsconstructed as described, the parted ends of the hose pipe A are placed`over a suitable metal 'tubing B, substantially as shownin Figs. 1 and2. The loops4 yformed by the halfsections 10, 10 and 16,

The lever is now moved toward the loop having the half sections 10, 10.This move? ment of the lever draws the half sections of the clamp intocloser relation, the circuml ference of the-combined members being diminished by twice the length of the straight sections 22. When the crossbar 20 and arms 19 of the lever are iinally forced over from theposition shown in Fig. 3 of the drawings, the eyelets 17 formed on thesections 16 are disposed between the cross bars 11 and the hooks 13, asbest seen in Fig. f-l of thel drawings.

Then the lever is disposed in the position shown in Figsl and 1 of thedrawings the line of the pull of the sections 16 and 10 on thejointsformed bythe straight sections 22 passes inside the pivotal connections,thereby locking the loops in close relation.

qWhen it is desired to release the hose sections from the engagement ofthe clamp,

any suitable instrument may be placed below the cross bar 20, and thelever may be pr'ied upward until the lock due to the eX- pansionof theloops and the hose pi e is broken. When the strain is taken o the lockthe lever maybe readily and easily Amoved to the fuller relaxed positionshown in Fig. 3 of the drawings.

In Fig. 5 of the drawings I have illustra-ted a simple method of takingup any slack which might arise from use in the clamp, or due tocompacting the body of the hose pipe. The method referred to consistsin' inserting a suitable small bit of wire C between the extensions ofthe loops 13, 13. Any suitable filling bit or piece could be thusemployed.

Havingzyithus described my invention, what I claim as new and desire tosecure by Letv ters Patent is A hose clamp, comprising ahalf loopsection having side members disposed in separated relation, said sidemembers being united by a cross bar arranged to form a hook for the saidhalf loop, the ends of said half loop being lapped and coiled each uponthel -iirst'mentioned loop section, said lever having formed at the endthereof hinge eyelets 'pivotally connected with the cross bar of saidfirst mentioned loop section, the side members of said lever being bentto form hinge bars passing through the eyelets formed in the ends ofthe-said second loop section, t-he said hinge bars and hinge eyeto forma contracting section. l

In testimony whereof I vhave signed this specieaton in the presence oftwo subscribing witnesses. f

lets forming the said lever being separated' HAROLD R. FRANCIS.

Witnesses:

CHARLES A. ROBERTSON,

'IoMLINsorI`

